Picture frame



FIG. 1 is a front elevational view of a picture frame showing my newdesign;

FIG. 2 is a front elevational view thereof, the picture frame being inan opened position;

FIG. 3 is a side elevational view thereof, the opposite side being amirror image of the side shown;

FIG. 4 is a side elevational view thereof, the picture frame being in aclosed position; and,

FIG. 5 is a top plan view thereof.

The broken lines are shown for illustration purposes only and form nopart of the claimed design.

The ornamental design for a picture frame, as shown and described.